Final answer:
The number of tables in a relational database depends on the complexity and structure of the data. It is generally recommended to have at least two tables to establish relationships and ensure data normalization.
Step-by-step explanation:
The number of tables that a relational database should contain depends on the complexity and structure of the data being stored. There is no fixed limit on the number of tables in a relational database. However, it is generally recommended to have at least two tables to establish relationships between entities and ensure data normalization.
By grouping the data differently, you can create different tables to represent different entities or relationships. For example, if you have a database for a school, you may have separate tables for students, teachers, and courses. This allows for more efficient management and querying of the data.
In my previous answer, I switched between tables to illustrate the concept of data normalization and the advantages of organizing data into separate tables based on their entities and relationships.